Humidification tub



FIG. 1 is a front perspective view of a humidification tub showing an embodiment of our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a bottom perspective view thereof; and,

FIG. 9 is another perspective view thereof.

One or more views (e.g., bottom view) may not be shown as those views are unornamented or simply not claimed in a given embodiment.

The broken lines represent environmental structure or unclaimed portions of the humidification tub and do not form a portion of the claimed design. 

CLAIM The ornamental design for a humidification tub, as shown and described. 